Explosive-engine.



Patented Dec. 30, 1913.

2 SHEETS-SHEET 1.

Witnesses Attorneys G. W. KNIGHT. EXPLOSIVB ENGINE. APPLICATION FILED JULY 19, 1911.

1,982,958., Patented Dec. 30, 1913.

2 SHEETS-GEES! 2.

CARL W. KNIGHT, or TIFFIN, OHIO.

EX PLOSIVE-ENGINE.

Specification of Letters Patent.

Patented Dec: 30, 1913.

Application filed July 19, 1911. Serial No. 639,457.

To all whom it m ay concern .Be it known that I, CARL lV. KNIGHT, a citizen of the United States, residing at Tifiin, in the county of Seneca and State of Ohio, have invented a'new and useful Explosive-Engine, of which the following is a specification. v

This invention relates to improvements in explosive motors, the primary object of the invention being the provision of a recipro eating motor in which the piston head is provided with a series of ports and co-acts with a stationary member interiorly thereof and concentrically thereof to provide an explosive chamber, the ports of the piston head and of the cylinder being valveless, the piston head during the reciprocation acting as a valve to open carbureted air intake upon the out stroke and due to the compresof the piston and cylinder. A further object of this invention is the sive action of the piston upon thesupply oI. carbureted air at the upper end of the cylinder to cause the carbureted air to rush into the interior of the piston'to supply the explosive chamber thereof with the charge and at thesame time to assist in expelling the burnt gases through the exhaust port provision of a motor, provided with an interior stationary cylinder with water-jacketed walls and an exterior casing mounted concentrically thereabout and alo waterjacketed, the two coacting to provide a support for a hollow reciprocating piston,

the piston carrying its explosive chamber, and being provided with ports controlled by the reciprocation thereof to admit-carbureted air to the explosive chamber and to permit the exhausting of the burnt gases, the said intake and exhausting being entirely due to the reciprocation of the piston.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and laimed, it being understood that changes in the precise embodiment of invention herein disclosed can e made within the scope of-what is claimed without departing from t e spirit of the invention.

In the drawings,,Figure 1 is a vertical central sectional view through a motor con section taken on line 2-2 of Fig. 1. Fig. 3 s a section taken on line 3-3 of Fig.1. Fig. 4 is a section taken on line 4-4 of Fig.

1. Fig. 5 is a section taken on line 5-5 of Fig. 1. Fig. (3 is a section taken on line (i6 of Fig. 1.

Referring to the drawings, the numeral 1 designates the base which carries the lower portion 2 of. the crank case, the upper portion 3 thereof being det-achably connected to the lower portion as shown and having jcurnaled therein the crank 4, carrying at one end the fly or balance wheel 5.

Connected to and supported by the flanges 6 of the crank case and projecting upwardly therefrom is the inner cylinder 8, composed of the inner casing 9 and the outer casing 10, concentric thereto and providing the water jacketing space 11, said cylinder 8 being provided with the two oppositely disposed vertical slots 12, in which ismounted to vertically reciprocate therein without atfooting the walls of the cylinder 8 the crosshead 13, connected to the piston rod 14:,

which in turn is connected to the'crank shaft The cylinder 8 is provided with the inner head 15 and the outer thick walled head 16 which is the lower, wall of the explosion chamber, and mounted a-nnularly of the walled head 16 in thecylinder 10, are the packing rings 17.

Surrounding the cylinder 8 and providing a concentric space therearound and also projecting a considerable distance above the head 16 thereof, is the outer cylinder 18, whose inner wall in combination with the outer wall of the cylinderB forms a guiding means for the hollow cylindrical piston or head 1%), whose upper end is closed at 19, and is connected at 20 to the extreme ends 13 of the cross head 13, whereby the said ,19 and communicating with the interior thereof are the two oppositely disposed ports 21 and 2:2 and surrounding said piston head above and below said ports are the packing rings 21. -The ports 21 and 22 communic ate, when they are in the position as clearly shown in Figs. 1 and 2 wi.lh the respective.

ports 23 and 23', leading through the bypasses 24 through the ports 25 and 25, respectively, into the compartment 26 in the upper and extreme end of the motor. Provided in the lower skirt portion of the hollow piston head 19, is a large port 27 adapted to aline with the exhaust outlet 28, while surrounding the wall 18 is its water jacket 29, at whose base 30, is the inlet conduit 31 which receives its carbureted air from the carburetor or any other form of gas mixing I the piston 19 when the piston uncovers or passes below the port 31, and by reason of the vacuum caused within the chamber 26 between the head 19 andthe under side of the top of the cylinder, the carbureted air 1s drawn through the conduit 31 and port 31 into the chamber 26 to be compressed therein upon the upstroke of the piston head. When the ports 21 and 22 of the piston head, as shown in Fig. 1, aline with the ports 23 and 23, the compressedcarbureted air will enter the chamber of the piston head and upon the downstroke, the port 22 will aline with the port of the spark plug 31", at the highest point of compression, dotted lines Fig. 1. At this point the compressed charge within the piston chamber is exploded, moving the piston head from the dotted position to the full line position of Figs. 1 and 2, bringing the port 27 of the head 19 to aline with the exhaust outlet 28, so that the charge will be exhausted slightly before and during the intake through the by-passes from the chamber 26.

In order to provide the proper circulation of water within the jackets 1.1 and 30, the chambers formed thereby are in communication with each other through the medium of the two conduits 32 as clearly shown in Fig. 1.

By this means it will be seen that the piston19 with its respective ports and also the respective ports of the stationary member eo-act to discharge and explode the mixture, and exhaust the burnt gases without the emouter peripheries of the primary and secondary cylinders respectively, the space be tween the head of the piston and primary cylinder, piston and secondary cylinder, forming compression and combustion chambers respectively, said primary cylinder provided with,a fuel inlet port, a spark plug port, and an exhaust port, said cylindrical piston provided with inlet and exhaust ports, the full outstroke of said piston adapted to uncover the primary cylinder fuel inlet port and bring the same into communication with the said compression chamber, and to aline the piston inlet with the cylinder spark plug, I

the full instroke of the said piston adapted to cover the spark plug port, and the pri mary cylinder fuel inlet port, and to aline the lower by-pass opening and the piston inlet port to bring the compression and combustion chambers into communication and to aline the exhaust ports of the piston and cylinder, and a water jacket surrounding the said primary cylinder and communicating with the double-walled secondary cylinder, to thereby provide for the circulation of a cooling medium around the walls of the primary cylinder, around the walls and head of the secondary cylinder.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

- CARL 'W. KNIGHT.

. Witnesses:

' EDWARD DIPPERY, FRANK S. WELLY. 

